
struct student{
	char name[10];
	int ID;
	int age;
	float score_math;
	float score_English;
	float score_C;
 }stu[30];
int append(struct student stu[],int m);
int del(struct student stu[],int m);
void revise(struct student stu[],int m);
void entry(struct student stu[],int m;
void ranking(struct student stu[],int m);
void find(struct student stu[],int m);
void sta(struct student stu[],int m);
void total(struct student stu[],int m);
void meau(); 

